The studies at polarization of alternating current of the electroconductive sulfur-graphite electrode with various ratio of sulfur 30 divided by 70% (masses) and graphite in a composite electrode are presented. The influence of main parameters of electrolysis: densities of current, concentration, temperature of electrolyte, electrolysis duration on sulfur electro dissolution are considered. The method of production of the electroconductive composite sulfur-graphite electrode is developed. The maximum electrochemical activity of sulfur is reached at a ratio of sulfur and graphite in an electrode of 50-65% and 35-50% respectively.